#include<stdio.h>
void main(){
	float a,b,c,t;
	printf("please enter a,b,c:\n");
	scanf("%f,%f,%f",&a,&b,&c);
	if(a<b){
		t=a;a=b;b=t;
	} if(a<c){
		t=a;a=c;c=t;
	}if(b<c){
		t=b;b=c;c=t;
	}printf("%6.2f,%6.2f,%6.2f\n",a,b,c);
}
